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Accuracy of Patient-Specific Drilling Guides in Acetabular Fracture Surgery: A Human Cadaver Study
- Source :
- Journal of personalized medicine, 11(8):763. MDPI AG, Journal of Personalized Medicine, Vol 11, Iss 763, p 763 (2021), Journal of Personalized Medicine, 11, 8, Journal of Personalized Medicine, Volume 11, Issue 8, Journal of Personalized Medicine, 11
- Publication Year :
- 2021
-
Abstract
- Contains fulltext : 239354.pdf (Publisher’s version ) (Open Access) Due to the complex anatomical shape of the pelvis, screw placement can be challenging in acetabular fracture surgery. This study aims to assess the accuracy of screw placement using patient-specific surgical drilling guides applied to pre-contoured conventional implants in acetabular fracture surgery. CT scans were made of four human cadavers to create 3D models of each (unfractured) pelvis. Implants were pre-contoured on 3D printed pelvic models and optically scanned. Following virtual preoperative planning, surgical drilling guides were designed to fit on top of the implant and were 3D printed. The differences between the pre-planned and actual screw directions (degrees) and screw entry points (mm) were assessed from the pre- and postoperative CT-scans. The median difference between the planned and actual screw direction was 5.9° (IQR: 4-8°) for the in-plate screws and 7.6° (IQR: 6-10°) for the infra-acetabular and column screws. The median entry point differences were 3.6 (IQR: 2-5) mm for the in-plate screws and 2.6 (IQR: 2-3) mm for the infra-acetabular and column screws. No screws penetrated into the hip joint or caused soft tissue injuries. Three-dimensional preoperative planning in combination with surgical guides that envelope pre-contoured conventional implants result in accurate screw placement during acetabular fracture surgery.
- Subjects :
- musculoskeletal diseases
medicine.medical_specialty
Medicine (miscellaneous)
3d model
3D virtual surgical planning
Article
Screw placement
03 medical and health sciences
0302 clinical medicine
TEMPLATE
patient-specific
POSTERIOR COLUMN
Medicine
030212 general & internal medicine
Pelvis
Human cadaver
030222 orthopedics
business.industry
SCREW PLACEMENT
Acetabular fracture
Soft tissue
3D print
Patient specific
medicine.disease
musculoskeletal system
equipment and supplies
surgical guides
Surgery
Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]
medicine.anatomical_structure
surgical procedures, operative
FIXATION STRENGTH
acetabular fracture
PLATE
Implant
business
Subjects
Details
- Language :
- English
- ISSN :
- 20754426
- Database :
- OpenAIRE
- Journal :
- Journal of personalized medicine, 11(8):763. MDPI AG, Journal of Personalized Medicine, Vol 11, Iss 763, p 763 (2021), Journal of Personalized Medicine, 11, 8, Journal of Personalized Medicine, Volume 11, Issue 8, Journal of Personalized Medicine, 11
- Accession number :
- edsair.doi.dedup.....5aa25f19fe7363c0268e40c11d27bff1